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문병현,송주열,이현성,손경규,엄태환,김정우,김아름 대구대학교 정보통신연구소 2004 情報通信硏究 Vol.3 No.2
The system designed in this paper, can mark the interior state of greenhouse using sensors of temperature, humidity and illumination on greenhouse interior by greenhouse system for farm village area's agriculture automation. And, the real time monitor is possible real time monitoring by camera. Also, system that can supply water using spring cooler system and humidifier. The proposed system can sustain a designed environment of the greenhouse through rentilation fan, fluorescent light and roof door control. TCP/IP is used for the remote control of state the sensors in the client program. 본 논문에서 설계된 시스템은 농촌 지역의 농업 자동화를 위한 온실 시스템으로 온실 내부에 온도, 습도, 조도 센서를 이용한 온실 내부의 상태를 표시할 수 있으며 카메라를 이용하여 실시간 관측이 가능하다. 또한 본 시스템은 지붕 개폐, 스프링 쿨러와 가습기를 이용한 수분 공급, 환풍기, 형광등 등을 통하여 온실 내부의 환경을 유지시킬 수 있다. 모든 센서를 이용한 상태와 온실 제어를 TCP/IP를 이용한 클라이언트 프로그램에서 원격으로 관리할 수 있다.
Kim Yeon Soo,Lee Su Hyun,Kim Soo-Yeon,Kim Eun Sil,Park Ah Reum,Chang Jung Min,Park Vivian Youngjean,Yoon Jung Hyun,Kang Bong Joo,Yun Bo La,Kim Tae Hee,Ko Eun Sook,Chu A Jung,Kim Jin You,Youn Inyoung,C 대한영상의학회 2024 Korean Journal of Radiology Vol.25 No.1
Objective: To investigate whether reader training improves the performance and agreement of radiologists in interpreting unenhanced breast magnetic resonance imaging (MRI) scans using diffusion-weighted imaging (DWI). Materials and Methods: A study of 96 breasts (35 cancers, 24 benign, and 37 negative) in 48 asymptomatic women was performed between June 2019 and October 2020. High-resolution DWI with b-values of 0, 800, and 1200 sec/mm2 was performed using a 3.0-T system. Sixteen breast radiologists independently reviewed the DWI, apparent diffusion coefficient maps, and T1-weighted MRI scans and recorded the Breast Imaging Reporting and Data System (BI-RADS) category for each breast. After a 2-h training session and a 5-month washout period, they re-evaluated the BI-RADS categories. A BI-RADS category of 4 (lesions with at least two suspicious criteria) or 5 (more than two suspicious criteria) was considered positive. The per-breast diagnostic performance of each reader was compared between the first and second reviews. Inter-reader agreement was evaluated using a multi-rater κ analysis and intraclass correlation coefficient (ICC). Results: Before training, the mean sensitivity, specificity, and accuracy of the 16 readers were 70.7% (95% confidence interval [CI]: 59.4–79.9), 90.8% (95% CI: 85.6–94.2), and 83.5% (95% CI: 78.6–87.4), respectively. After training, significant improvements in specificity (95.2%; 95% CI: 90.8–97.5; P = 0.001) and accuracy (85.9%; 95% CI: 80.9–89.8; P = 0.01) were observed, but no difference in sensitivity (69.8%; 95% CI: 58.1–79.4; P = 0.58) was observed. Regarding inter-diffusionreader agreement, the κ values were 0.57 (95% CI: 0.52–0.63) before training and 0.68 (95% CI: 0.62–0.74) after training, with a difference of 0.11 (95% CI: 0.02–0.18; P = 0.01). The ICC was 0.73 (95% CI: 0.69–0.74) before training and 0.79 (95% CI: 0.76–0.80) after training (P = 0.002). Conclusion: Brief reader training improved the performance and agreement of interpretations by breast radiologists using unenhanced MRI with DWI.
Biosynthesis of Glycosylated Derivatives of Tylosin in Streptomyces venezuelae
( Ah Reum Han ),( Sung Ryeol Park ),( Je Won Park ),( Eun Yeol Lee ),( Dong Myung Kim ),( Byung Gee Kim ),( Yeo Joon Yoon ) 한국미생물 · 생명공학회 2011 Journal of microbiology and biotechnology Vol.21 No.6
Streptomyces venezuelae YJ028, bearing a deletion of the entire biosynthetic gene cluster encoding the pikromycin polyketide synthases and desosamine biosynthetic enzymes, was used as a bioconversion system for combinatorial biosynthesis of glycosylated derivatives of tylosin. Two engineered deoxysugar biosynthetic pathways for the biosynthesis of TDP-3-O-demethyl-D-chalcose or TDP-Lrhamnose in conjunction with the glycosyltransferaseauxiliary protein pair DesVII/DesVIII were expressed in a S. venezuelae YJ028 mutant strain. Supplementation of each mutant strain capable of producing TDP-3-O-demethyl- D-chalcose or TDP-L-rhamnose with tylosin aglycone tylactone resulted in the production of the 3-O-demethyl- D-chalcose, D-quinovose, or L-rhamnose-glycosylated tylactone.
Kim, Bong Jik,Ueyama, Takehiko,Miyoshi, Takushi,Lee, Seungmin,Han, Jin Hee,Park, Hye-Rim,Kim, Ah Reum,Oh, Jayoung,Kim, Min Young,Kang, Yong Seok,Oh, Doo Yi,Yun, Jiwon,Hwang, Sang Mee,Kim, Nayoung K D BMJ Publishing Group Ltd 2019 Journal of medical genetics Vol.56 No.12
<P><B>Background</B></P><P>Diaphanous-related formin 1 (DIA1), which assembles the unbranched actin microfilament and microtubule cytoskeleton, is encoded by <I>DIAPH1</I>. Constitutive activation by the disruption of autoinhibitory interactions between the N-terminal diaphanous inhibitory domain (DID) and C-terminal diaphanous autoregulatory domain (DAD) dysregulates DIA1, resulting in both hearing loss and blood cell abnormalities.</P><P><B>Methods and results</B></P><P>Here, we report the first constitutively active mutant in the DID (p.A265S) of humans with only hearing loss and not blood cell abnormality through whole exome sequencing. The previously reported DAD mutants and our DID mutant (p.A265S) shared the finding of diminished autoinhibitory interaction, abnormally upregulated actin polymerisation activity and increased localisations at the plasma membrane. However, the obvious defect in the DIA1-driven assembly of cytoskeleton ‘during cell division’ was only from the DAD mutants, not from p.A265S, which did not show any blood cell abnormality. We also evaluated the five DID mutants in the hydrophobic pocket since four of these five additional mutants were predicted to critically disrupt interaction between the DID and DAD. These additional pathogenic DID mutants revealed varying degrees of defect in the DIA1-driven cytoskeleton assembly, including nearly normal phenotype during cell division as well as obvious impaired autoinhibition, again coinciding with our key observation in DIA1 mutant (p.A265S) in the DID.</P><P><B>Conclusion</B></P><P>Here, we report the first mutant in the DID of humans with only hearing loss. The differential cell biological phenotypes of DIA1 during cell division appear to be potential determinants of the clinical severity of <I>DIAPH1-</I>related cytoskeletopathy in humans.</P>
( Ah Reum Khang ),( Eun Ki Kim ),( Eun Shil Hong ),( Hyung Jin Choi ),( Chan Soo Shin ),( Kyong Soo Park ),( Seong Yeon Kim ) 대한내과학회 2011 대한내과학회 추계학술발표논문집 Vol.2011 No.1
Parathyroid cysts are very rare among the causes of primary hyperparathyroidism (PHPT). They are divided into functional and nonfunctional cysts. Operative removal is a treatment of choice for a functional cyst. 99mTc-Sestamibi parathyroid scan is a highly effective and sensitive diagnostic tool for localization of hyperparathyroidism, however it shows a false-negative result, occasionally. We found one case which was presumed to have cystic parathyroid adenoma based on clinical findings and neck computed tomography (CT) with negative finding in parathyroid scan. A male patient who was 44 years-old visited to hospital due to legs pain and it was occurred 5months ago and deteriorated gradually. In addition, he presented with the compressive symptoms such as dysphagia and hoarseness. Serum calcium level was 14.4 mg/dl, phosphorus 2.0 mg/dl, creatinine 0.99 mg/dl and intact parathyroid hormone (iPTH) was increased to 478.1 pg/ml. On neck CT, 6.2×3.8×2.7 cm sized cystic nodule was found in inferior part of right thyroid gland. Sestamibi uptake for the found nodule was not detected on 2 hour delayed imaging of 99mTc-Sestamibi parathyroid scan. Fine needle aspiration for diagnosis and localization was done and intracystic iPTH was increased to 61,600 pg/ml. The iPTH monitoring for focused parathyroidectomy led to successful enucleation of right inferior parathyroid. It was a parathyroid adenoma and serum calcium, phosphate and iPTH was normalized after operation. A cystic parathyroid adenoma can be hardly detected on 99mTc-Sestamibi parathyroid scan sometimes. The multidisciplinary approach which considered clinical findings, laboratory results, physical examination and other imagings (CT, Ultrasound, etc) is important for differential diagnosis of hyperparathyroidism. The iPTH monitoring helps the focused parathyroidectomy.
Kim, Seo-Yul,Kim, Ah-Reum,Yoon, Jung Woon,Kim, Hyun-Jong,Bae, Youn-Sang Elsevier 2018 CHEMICAL ENGINEERING JOURNAL -LAUSANNE- Vol.335 No.-
<P><B>Abstract</B></P> <P>We propose for the first time an acetic acid (AcOH)-fragmented linker co-assembly strategy to create mesoporous defects in a microporous metal–organic framework (MOF), HKUST-1. By using various methods, including <SUP>1</SUP>H NMR, FT-IR and XPS, we confirmed the successful co-assembly of AcOH fragments into the HKUST-1 structure. The prepared AcOH-fragmented HKUST-1 materials showed improved methane uptake (13% higher storage capacity at 65 bar and 16% higher deliverable capacity between 65 bar and 5 bar) and greatly increased surface areas (from 1787 to 2396 m<SUP>2</SUP>/g) and pore volumes (from 0.77 to 1.20 cc/g) compared to the parent HKUST-1. This is remarkable because HKUST-1 is considered to be one of the most promising materials for methane storage. Furthermore, we propose possible scenarios of defect formation in the AcOH-fragmented HKUST-1 materials from simulations of several hypothetical structures. This AcOH-fragmented linker co-assembly strategy could be compatible with a large number of carboxylate-based MOFs.</P> <P><B>Highlights</B></P> <P> <UL> <LI> A novel acetic-acid fragmented linker co-assembly strategy was proposed to create mesoporous defects in HKUST-1. </LI> <LI> The AcOH-fragmented materials showed significantly larger surface areas and pore volumes than HKUST-1. </LI> <LI> The AcOH-fragmented HKUST-1 materials showed improved methane uptakes compared to HKUST-1. </LI> <LI> Possible scenarios of defect formation were suggested from simulations of several hypothetical structures. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>